Affluent Pedro Jose Mendez Dam
Affluent Pedro Jose Mendez Dam in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 18.5 µg/L.
Why Affluent Pedro Jose Mendez Dam has no A–F grade
Affluent Pedro Jose Mendez Dam in Mexico is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the National Water Commission of Mexico (CONAGUA), via UNEP GEMS/Water.
Affluent Pedro Jose Mendez Dam is a lake in Unknown County, Mexico.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-09-07. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Affluent Pedro Jose Mendez Dam
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 18.5 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 18.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Affluent Pedro Jose Mendez Dam
Compare lakeside cabins, hotels, and vacation rentals near Affluent Pedro Jose Mendez Dam in Unknown, Mexico — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Affluent Pedro Jose Mendez Dam
Frequently asked questions about Affluent Pedro Jose Mendez Dam
What is the water quality of Affluent Pedro Jose Mendez Dam?
- Affluent Pedro Jose Mendez Dam in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 18.5 µg/L.
Is Affluent Pedro Jose Mendez Dam safe to swim in?
- Affluent Pedro Jose Mendez Dam has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
10 measurements from 1 monitoring station, 2016–2020. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Comisión Nacional del Agua
comisionnacionaldelagua10 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
MEX02822
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2020-09-07
Monitoring stations: 1